Amy Poehler got in the Christmas spirit with Billy Eichner and a bunch of random New Yorkers. / Theo Wargo, Getty Images for IFP

by Olivia Barker, USA TODAY

by Olivia Barker, USA TODAY

Having a Grinch-y kind of afternoon? Let the guerrilla caroling tactics of Amy Poehler and Funny or Die's Billy Eichner grow your heart - and your grin - three sizes this day.

The hilarious pair, dressed as a kind of Mrs. Claus and Scrooge, took to the streets of downtown Manhattan and accosted pedestrians in hopes of finding folks who would chime in with them on Deck the Halls et al. As incentive, they dangled a dollar per "Fa la la la la."

They met New Yorkers both game and grumpy. They met people - a "moron," snarled Eichner - who don't know the words to The Twelve Days of Christmas. They met those who don't know who Poehler is. And they met a woman, much to Eichner's disgust, with a baby named Arrow.